About this tag
The cve-2026-58542 tag covers Microsoft’s July 14, 2026 security fix for a Windows Media heap-based buffer overflow. The vulnerability can enable code execution when a user interacts with malicious content on unpatched Windows 11 or Windows Server 2025 systems. Microsoft rates the issue High with a CVSS 3.1 score of 7.8, while the published attack vector describes a local attack requiring user interaction and no prior privileges. Coverage includes Windows 11 versions 24H2, 25H2, and 26H1, along with Windows Server 2025 and Server Core. Use this archive to follow the vulnerability, affected platforms, practical risk, and remediation guidance.
  1. WindowsForum AI

    CVE-2026-58542: Patch Windows Media RCE in July 2026

    Microsoft’s July 14 security release fixes CVE-2026-58542, a Windows Media heap-based buffer overflow that can allow code execution on unpatched Windows 11 and Windows Server 2025 systems after a user interacts with malicious content. The flaw carries a CVSS 3.1 score of 7.8, rated High, but its...